Check the listen_address and rpc_address in the yaml file for each node. I think they are normally set to the private and public respectively.
This may make your live easier http://www.datastax.com/dev/blog/setting-up-a-cassandra-cluster-with-the-datastax-ami Cheers ----------------- Aaron Morton Freelance Cassandra Developer @aaronmorton http://www.thelastpickle.com On 25 May 2011, at 09:58, Sameer Farooqui wrote: > Even with AutoBootstrap it is recommended that you always specify the > InitialToken on the new node because the picking of an initial token will > almost certainly result in an unbalanced ring. > > Right now, I'm afraid that if you simply copied the YAML file from one of the > two nodes to the 3rd node, then the 3rd node has an incorrect initial_token > setting (it may be conflicting with node 1 or 2's range). > > Some info about how to choose tokens: > http://wiki.apache.org/cassandra/Operations#Token_selection > http://journal.paul.querna.org/articles/2010/09/24/cassandra-token-selection/ > > So, once you know what token each of the 3 nodes should have, shut down the > first two nodes, change their tokens and add the correct token to the 3rd > node (in the YAML file). > > If this doesn't fix it, start to look at the Cassandra log file to > troubleshoot. It's located usually at /var/log/cassandra and is by default > only logging at INFO level. You can make it more granular by changing the > logging level in the file <cassandra-home>/conf/log4j-server.properties and > change the line with INFO in it to: > log4j.rootLogger=DEBUG,stdout,R > > Note that this will slow things down performance-wise in the cluster since > every I/O is logged. But it really helps with learning how Cassandra works > and with troubleshooting. > > research links: > http://wiki.apache.org/cassandra/FAQ#existing_data_when_adding_new_nodes > > > > On Tue, May 24, 2011 at 12:17 PM, Marcus Bointon <mar...@synchromedia.co.uk> > wrote: > On 24 May 2011, at 19:33, Sameer Farooqui wrote: > > > What region and availability zones are the different nodes in? Are you > > using EC2 Snitch? Did you set up the cluster using the Datastax AMI? > > The two existing ones are in us-east-1c and us-east-1d, the new one is in > us-east-1c, so all same region, different AZs. I'm using the Alestic Ubuntu > AMIs. I've not heard of either EC2 snitch or Datastax. Are they particularly > suited to cassandra? > > Marcus >
